Inventors:
Donn Anthony DuBois - Houston TX
Jeffrey George Southwick - Waterloo, BE
Ronald James Hoxmeier - Houston TX
John Allen - Pasadena CA
Assignee:
Kraton Polymers US LLC - Houston TX
Avery Dennison Corporation - Pasadena CA
International Classification:
B82B 2728, B82B 2732
Abstract:
This invention relates to anionically polymerized block copolymers comprised of at least one block of polyethylene and at least one block of a polymerized cyclic siloxane monomer wherein said cyclic siloxane monomer contains at least one functional group containing a fluorocarbon substituent, e. g. , 2,4,6-tris(3,3,3-trifluoropropyl)-1,3,5-trimethylcyclotrisiloxane. The fluoro-functionality may instead be introduced into the polymer by using said siloxane monomer to end cap the polymer. These copolymers can be used in extruded release coating films prepared by blending the copolymer with a film grade polymer. They can also be used to modify surface adhesion, promote flow in polymer processing or coat a polymeric surface to impart properties such as a barrier to water vapor transmission, or solvent resistance.